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Artykuły w czasopismach na temat „Implant impressions”

Autor: Grafiati

Data publikacji: 2 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Nidawani, Prakash, Shiva Sai Vemula, Pooja Nagoji, Saumya Singh, and Girish Galagali. "An unconventional impression method using implant mount: an alternative to open-and closed-tray impression technique." International Journal of Dental Materials 05, no. 02 (2023): 37–42. http://dx.doi.org/10.37983/ijdm.2023.5203.

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Background:Various impression techniques have been proposed for making implant prostheses. Impressions are made at implant level –closed and open tray impressions, as well as abutment level impressions. Closed and open tray copings are used to make the impressions. The limitations associated with the implant impression copings, including expensive ones, pose a significant challenge in limited mouth-opening cases, and customization of copings is not feasible.Aim: This study aimed to compare the dimensional accuracy of four impression methods, open-tray, closed-tray, disposable mount as coping a

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Paul, Nirupam, Jogeswar Barman, and Barasha Goswami. "Comparative evaluation of linear dimensional accuracy of impressions made with different elastomeric impression materials (Polyether and Polyvinyl siloxane) in angulated and parallel implants-An invitro study." IP International Journal of Maxillofacial Imaging 9, no. 1 (2023): 11–24. http://dx.doi.org/10.18231/j.ijmi.2023.003.

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To date no technique has been proven to guarantee a completely passive fit of implant supported prosthesis framework. Several clinical variables such as angulation of implants, impression material and technique used may affect the precision of impressions. Hence, this study is designed to evaluate and compare the dimensional accuracy of the resultant casts made from open tray implant level impressions with two different impression materials (polyvinyl siloxane and polyether) in parallel and angulated implants. The study consisted of two control groups; master model –1with parallel implants and

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Singh, Navdeep, Saurav Kumar, Thiruvalluvan N, Parag Dua, and Sonam Yangchen. "A modified open tray direct abutment level impression technique: A clinical tip." IP Annals of Prosthodontics and Restorative Dentistry 9, no. 2 (2023): 87–91. http://dx.doi.org/10.18231/j.aprd.2023.018.

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Reproducing the accurate intraoral relationship of an implant through impression making is first step in achieving accurate fit prosthesis. Traditionally impression techniques used in implant dentistry can be classified into closed tray and open tray impression techniques. Open tray impressions are considered to be more accurate as compared to the closed tray impressions in cases with multiple implants. It requires long impression copings which are picked up in the impression during impression procedure thereby reproducing the exact relationship of an implant. Present article describe a modifi

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Sikri, Dr Arpit, and Dr Jyotsana Sikri. "Dental Implant Impressions: The First Impression Is The Last Impression: Short Communication." ENVIRO Dental Journal 3, no. 2 (2021): 43–45. http://dx.doi.org/10.12944/edj.03.02.05.

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Dental implant is defined as a prosthetic device made of alloplastic material(s) implanted into the oral tissues beneath the mucosal and/or periosteal layer and on or within the bone to provide retention and support for a fixed or removable dental prosthesis; a substance that is placed into and/or on the jaw bone to support a fixed or removable dental prosthesis [Glossary of Prosthodontic Terms (GPT 9)]. Dental implants have been swiftly gaining popularity as a treatment modality of choice in prosthodontics i.e. both fixed and removable. Impression is defined as negative likeness or copy in re

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Annaldasula, Shweta V., and Chein Shee Antoinette Yen. "A comprehensive review of impression techniques in implant dentistry." International Journal of Dentistry Research 6, no. 1 (2021): 16–23. http://dx.doi.org/10.31254/dentistry.2021.6106.

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Regardless of the demonstrable success of fixed appliances like implants for the replacements of missing natural teeth in partially and fully edentulous patients, countable hindrances still persist. A crucial role is played by impressions used in the fabrication of dental implants for the success, durability and outcome of the restoration. An impression is a three dimensional negative likeness of the future position of the implant in the oral cavity. In view of the absence of periodontal ligaments that serve as natural compensators of the slight but significant details of the impression surfac

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Emara, Nermine Fayez, Safaa E. Asal, and Tamer M. N. Mostafa. "Comparative study of conventional and digital implant impression techniques with different implant angulations (in-vitro study)." Tanta Dental Journal 22, no. 1 (2025): 8–14. https://doi.org/10.4103/tdj.tdj_10_24.

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Abstract Purpose Comparing cast accuracy of unsplinted open tray implant impression technique to digital impressions at different implant angulations using two measurement methods [Coordinate Measuring Machine (CMM) and Geomagic software]. Materials and methods Two mandibular completely edentulous epoxy resin models (A and B) representing a clinical scenario: model A four implant analogs parallel to each other, two at the canine region and two at the first molar region, and model B four implant analogs with different angulation; two at the canine region with 15º angles, and two at the first mo

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G.S, Prasanthi, Uppala Sushma, Tikkisetty Chaitanya Jyothi, Varchaswi Vellanki, Raguri Manaswi, and Neha Agrawal. "Effect of implant angulation and impression technique on Nobel active implant impressions: An original study." Bioinformation 21, no. 05 (2025): 1191–94. https://doi.org/10.6026/973206300211191.

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Accurate implant impressions are essential for the success and longevity of implant-supported prostheses. The Nobel Active system has a tapered body and aggressive thread design, demanding high precision. Therefore, it is of interest to compare open-tray and closed-tray techniques for impression accuracy. Implants were placed at 0°, 15°, and 25° angulations for evaluation. A Coordinate Measuring Machine was used for 3D deviation measurements. At 0°, both techniques showed negligible differences in accuracy. At 15° and 25°, the open-tray technique had significantly better accuracy (p < 0.05)

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De Francesco, Maurizio, Edoardo Stellini, Stefano Granata, et al. "Assessment of Fit on Ten Screw-Retained FrameworksRealized through Digital Full-Arch Implant Impression." Applied Sciences 11, no. 12 (2021): 5617. http://dx.doi.org/10.3390/app11125617.

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Background: Discordant opinions have emerged among clinicians and researchers regarding a digital impression for full-arch implant-supported fixed dental prostheses (FDPs). The purpose of this study was to assess the fit of screw-retained milled frameworks on six implants realized from digital impressions through the Sheffield test. Methods: One patient received a maxillary full-arch implant-supported FDP. Six months after the surgical procedure, ten intraoral full-arch digital impressions were performed to mill ten frameworks. To clinically assess the fit, the Sheffield test was applied for a

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9

IRANI, Dany, and Mayssaê EL AHMADIÉ. "Effects of impression material and implant angulation on the impression accuracy of external connection implants: An in vitro study." International Arab Journal of Dentistry 11, no. 1 (2020): 11–18. http://dx.doi.org/10.70174/iajd.v11i1.451.

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A precise impression is mandatory to obtain passive fit in implant-supported prostheses. The aim of this study was to evaluate the effect of impression material and implant angulation on the impression accuracy of external-connection implants. Four customized epoxy resin master models, with twoimplant analogs placed parallel or with different degrees of divergence (10, 20 and 30 degrees), were fabricated with their corresponding passively fitted reference frameworks. Ten impressions were taken, for each model, with vinyl polysiloxane (VPS) and polyether (PE) using custom open tray impression t

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Marques, Simone, Paulo Ribeiro, Carlos Falcão, et al. "Digital Impressions in Implant Dentistry: A Literature Review." International Journal of Environmental Research and Public Health 18, no. 3 (2021): 1020. http://dx.doi.org/10.3390/ijerph18031020.

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Introduction. Digital impressions in implant dentistry rely on many variables, and their accuracy, particularly in complete edentulous patients, is not well understood. Aim. The purpose of this literature review was to determine which factors may influence the accuracy of digital impressions in implant dentistry. Emphasized attention was given to the design of the intra-oral scan body (ISB) and scanning techniques. Materials and methods. A Medline, PubMed and EBSCO Host databases search, complemented by a hand search, was performed in order to select relevant reports regarding the appliance of

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Kumar, Varun, Shubham Talele, and Jyotsna Seth. "Comparison of dimensional accuracy of digital impression technique versus conventional impression technique on parallel endosseous dental implants: An in vitro study." International Journal of Oral Health Dentistry 10, no. 4 (2024): 290–95. https://doi.org/10.18231/j.ijohd.2024.051.

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To create an implant prosthesis that fits well, a precise implant impression is necessary. This in vitro study assessed the dimensional accuracy of open tray impressions vs digital impressions taken with an intraoral scanner for tracking the locations of parallel-placed endosseous implants.Two parallel endosseous implants were positioned in a mandibular customized model made up of epoxy resin at the first premolar sites. The inter-implant distance was measured using a Co-ordinate Measuring Machine (SIPCON SVI CNC 3D). Conventional open tray impressions were made using addition silicone, while

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Alikhasi, Marzieh, Hakimeh Siadat, Abbas Monzavi, and Fatemeh Momen-Heravi. "Three-Dimensional Accuracy of Implant and Abutment Level Impression Techniques: Effect on Marginal Discrepancy." Journal of Oral Implantology 37, no. 6 (2011): 649–57. http://dx.doi.org/10.1563/aaid-joi-d-09-00112.1.

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Impression techniques should precisely represent the 3-dimensional status of implants to allow for the fabrication of passively fitting prostheses and subsequently the elimination of strain on supporting implant components and surrounding bone. The aim of this study was to compare the accuracy of an abutment level impression method with that of an implant level (direct and indirect) impression method using polyether impression material to obtain precise definitive casts and prostheses. A reference acrylic resin dentoform with 2 internal connection implants (Implantium) was made. A total of 21

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Mahdavinaderi, Yas, Mahmood Reza Mobayeni, Homeira Ansari Lari, Maryam Sayyari, and Mohammad Reza Mousavi. "Dimensional Accuracy of Close Tray vs. Digital Techniques in Implant Impressions– An in vitro study." Oral & Implantology 16, no. 2 (2024): 62–66. https://doi.org/10.11138/oi16262-66.

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Background: Precise dimensional impression accuracy is crucial in dental prosthetics and implantology. This study aims to compare the dimensional accuracy of implant impressions achieved through intraoral scanning and conventional impression methods for parallel and angled implants. Materials: This study created a partial edentulous maxillary model using heat-cured acrylic, with four fixtures in the premolar areas and two posterior implants inclined 15 degrees lingually on each side. Close tray copings and intraoral scanning with a TRIOS scanner were used for impressions. Distances A1, A2, and

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Mahdavinaderi, Yas, Mahmood Reza Mobayeni, Homeira Ansari Lari, Maryam Sayyari, and Mohammad Reza Mousavi. "Dimensional Accuracy of Close Tray vs. Digital Techniques in Implant Impressions– An in vitro study." Oral & Implantology 16, no. 2 (2024): 62–66. https://doi.org/10.11138/oi.v16i2.45.

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Background: Precise dimensional impression accuracy is crucial in dental prosthetics and implantology. This study aims to compare the dimensional accuracy of implant impressions achieved through intraoral scanning and conventional impression methods for parallel and angled implants. Materials: This study created a partial edentulous maxillary model using heat-cured acrylic, with four fixtures in the premolar areas and two posterior implants inclined 15 degrees lingually on each side. Close tray copings and intraoral scanning with a TRIOS scanner were used for impressions. Distances A1, A2, and

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Dr., Udfer Hameed, Mohd Ali Dr., Qazi Shazana Nazir Dr., Sandeep Kour Bali Dr., and Shabir Ahmed Shah Dr. "Effect of Impression Trays and Materials on the Accuracy of Open Tray Implant Impressions: An in Vitro Comparative Study." International Journal of Innovative Science and Research Technology 8, no. 1 (2023): 263–68. https://doi.org/10.5281/zenodo.7558025.

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One of the most important steps in achieving passive fit of a prosthesis is making precise impressions. The aim of the present study was to evaluate the accuracy of open tray implant impression made with two different impression trays and impression materials. Methodology: The study was carried on a simulated acrylic resin model with two implants placed at premolar and molar region. Open tray implant impressions were made using two different impression trays and materials as follows: Group 1: Polyether custom tray impression, Group 2: Polyether stock tray impression, Group 3: Polyvinylsiloxane

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Farronato, Davide, Pietro Mario Pasini, Veronica Campana, Diego Lops, Lorenzo Azzi, and Mattia Manfredini. "Can transfer type and implant angulation affect impression accuracy? A 3D in vitro evaluation." Odontology 109, no. 4 (2021): 884–94. http://dx.doi.org/10.1007/s10266-021-00619-y.

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AbstractImpression accuracy is fundamental to achieve a passive fit between implants and the superstructure. Three transfer types were tested to evaluate the differences in impression accuracy and their efficiency in case of different implant angles. A master model with four implant analogues placed at 0°, 15° and 35° was used. 27 impressions were taken with three different types of impression coping: closed tray technique coping (CT), open tray technique coping (COT) and telescopic open tray coping (TOT). The impressions were poured. Analogues were matched with scan bodies to be scanned and e

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International, Journal of Medical Science and Innovative Research (IJMSIR). "A Comparative Study to Evaluate The Accuracy of Open Tray Splinted and Non-Splinted Implant Level Impressions and Impressions Obtained From Two Intraoral Scanners For Three Implants Placed in A Partially Edentulous Arch - An in Vitro Study." International Journal of Medical Science and Innovative Research (IJMSIR) 9, no. 4 (2024): 185–97. https://doi.org/10.5281/zenodo.15422901.

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<strong>Abstract</strong> Title: A comparative study to evaluate the accuracy of open tray splinted and non-splinted implant level impressions and impressions obtained from two intraoral scanners for three implants placed in a partially edentulous arch - an in vitro study <strong>Objective</strong>: The aim of this in vitro study was to compare and evaluate the accuracy of open tray splinted and non-splinted Implant level impression and impressions obtained from two intraoral scanners for three implants placed in a partially edentulous arch and to evaluate which of the two scanners used (Trios

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Drancourt, Noemie, Chantal Auduc, Aymeric Mouget, et al. "Accuracy of Conventional and Digital Impressions for Full-Arch Implant-Supported Prostheses: An In Vitro Study." Journal of Personalized Medicine 13, no. 5 (2023): 832. http://dx.doi.org/10.3390/jpm13050832.

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Both conventional and digital impressions aim to record the spatial position of implants in the dental arches. However, there is still a lack of data to justify the use of intraoral scanning over conventional impressions for full-arch implant-supported prostheses. The objective of the in vitro study was to compare the trueness and precision of conventional and digital impressions obtained with four intra-oral scanners: Trios 4 from 3Shape®, Primescan from Dentsply Sirona®, CS3600 from Carestream® and i500 from Medit®. This study focused on the impression of an edentulous maxilla in which five

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Leclercq, Philippe, Charlotte Zenati, and David M. Dohan. "The Relevance of a New Generation of Monobloc Posts and Impression Copings for Implant-supported Fixed Partial Dentures: A 2-year Clinical Prospective Study With the FM-Clip System on EVL Implants (SERF)." Journal of Oral Implantology 32, no. 5 (2006): 251–55. http://dx.doi.org/10.1563/810.1.

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Abstract The use of monobloc posts for implant-supported fixed partial dentures is interesting for biomechanical and biological reasons, but it suffers from a lack of precision during the impression phase. The use of a new generation of monobloc posts associated with individual impression copings with a piston offers a simple and efficient impression procedure for small and medium implant-supported fixed partial dentures. This article presents the FM-Clip system for EVL implants composed of new straight monobloc posts and small impression copings with a piston for precise impressions and easy

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Ferrini, Francesco, Paolo Capparé, Raffaele Vinci, Enrico F. Gherlone, and Gianpaolo Sannino. "Digital versus Traditional Workflow for Posterior Maxillary Rehabilitations Supported by One Straight and One Tilted Implant: A 3-Year Prospective Comparative Study." BioMed Research International 2018 (November 11, 2018): 1–7. http://dx.doi.org/10.1155/2018/4149107.

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Objectives. The aim of the study was to evaluate and compare digital and traditional prosthetic workflow for posterior maxillary restorations supported by an upright and a distally tilted implant at 3-year follow-up. Materials and Methods. Twenty-four patients were treated in the posterior maxilla with 24 immediately loaded axial and 24 distally tilted implants supporting 3-unit or 4-unit screw-retained prostheses. Three months after initial loading patients were randomly stratified into two groups: definitive traditional impressions were carried out in the control group, while digital impress

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Lam, Tran Hung, Nguyen Phuong Hang, Lam Dai Phong, Vo Chi Hung, and Hoang Viet. "Comparison of Accuracy between Digital and Conventional Impression Techniques in Full-Arch Edentulous Implant Patients: An In Vitro Study." Dental Hypotheses 16, no. 2 (2025): 53–55. https://doi.org/10.4103/denthyp.denthyp_10_25.

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Introduction: We aimed to compare the accuracy of digital and conventional impression techniques in full-arch edentulous implant patients and to evaluate the impact of using an auxiliary geometry part (AGP). Methods: A mandibular edentulous stone cast with four multiunit abutment analogs was fabricated as the master cast. This cast was scanned using an industrial scanner to generate reference data. Impressions were then obtained using three techniques: intraoral scanning (IOS), IOS with an AGP (IOS-AGP), and the open-tray splinted conventional technique (OTS). The precision of the impression m

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Dr., Virender Kumar, Yadav Dr.Jyoti, Sharique Rehan Dr., and Sunint Singh Dr. "Digital versus conventional implant impressions-Finding the evidence." International Journal of Dental Science and Innovative Research (IJDSIR) Volume – 5,, Issue – 1, February - 2022 (2022): Page No. : 329–345. https://doi.org/10.5281/zenodo.8200070.

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Digital technology has been revolutionary in the recent past and has made various dental procedures easier, better and more efficient. Accuracy of impression procedure is very crucial in implant prostheses fabrication, which affects the final result. Digital implant impression accurately locates the three-dimensional implant position in relation to the other structures in mouth. However, there is a lack of evidence on the accuracy of digital versus conventional implant impressions. Therefore, the purpose of this systematic review is to evaluate the accuracy of digital implant impression when c

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Pujari, Malesh, Pooja Garg, and D. R. Prithviraj. "Evaluation of Accuracy of Casts of Multiple Internal Connection Implant Prosthesis Obtained From Different Impression Materials and Techniques: An In Vitro Study." Journal of Oral Implantology 40, no. 2 (2014): 137–45. http://dx.doi.org/10.1563/aaid-joi-d-10-00207.

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Movement of impression copings inside the impression material using a direct (open tray) impression technique during clinical and laboratory phases may cause inaccuracy in transferring the 3-dimensional spatial orientation of implants intraorally to the cast. Consequently, the prosthesis may require corrective procedures. This in vitro study evaluated the accuracy of 3 different impression techniques using polyether and vinyl polysiloxane (VPS) impression material to obtain a precise cast for multiple internal connection implants. A reference acrylic resin model with 4 internal connection impl

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D’haese, Rani, Tom Vrombaut, Herman Roeykens, and Stefan Vandeweghe. "In Vitro Accuracy of Digital and Conventional Impressions for Full-Arch Implant-Supported Prostheses." Journal of Clinical Medicine 11, no. 3 (2022): 594. http://dx.doi.org/10.3390/jcm11030594.

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The aim of this study was to evaluate the accuracy of full-arch digital impressions when compared to conventional impressions, when performed on the abutment or implant level. Methods: One resin cast with six implants and another cast with six abutments were scanned with Primescan v5.1 (PS51), Primescan v5.2 (PS52), Trios 3 (T3), and Trios 4 (T4). Additionally, conventional impressions (A) were made, poured in gypsum, and digitized using a lab scanner (IScan D104i). A coordinate machine (Atos, GOM, Braunschweig, Germany) was used to generate the reference scan of both casts. For all scans, the

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Tallarico, Marco, Davide Galiffi, Roberto Scrascia, et al. "Digital Workflow for Prosthetically Driven Implants Placement and Digital Cross Mounting: A Retrospective Case Series." Prosthesis 4, no. 3 (2022): 353–68. http://dx.doi.org/10.3390/prosthesis4030029.

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Fully digital workflow in implant dentistry is ever increasing. Treatment of partial edentulous cases is well-documented; nevertheless, complete edentulous cases are still a challenge. To present several innovations in the treatment of complete edentulous patients using digital solutions, both for implant placement and restoration delivery, was the objective of this study. It was designed as a retrospective case series study, aimed to tune further research with larger sample size, and a longer follow-up. Patients requiring complete, implant-supported restoration were asked to participate in th

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Albanchez-González, María Isabel, Jorge Cortés-Bretón Brinkmann, Jesús Peláez-Rico, Carlos López-Suárez, Verónica Rodríguez-Alonso, and María Jesús Suárez-García. "Accuracy of Digital Dental Implants Impression Taking with Intraoral Scanners Compared with Conventional Impression Techniques: A Systematic Review of In Vitro Studies." International Journal of Environmental Research and Public Health 19, no. 4 (2022): 2026. http://dx.doi.org/10.3390/ijerph19042026.

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The aim of this systematic review was to evaluate the in vitro accuracy of dental implants impressions taken with intraoral scanner compared with impressions taken with conventional techniques. Two independent reviewers conducted a systematic electronic search in the PubMed, Web of Science and Scopus databases. Some of the employed key terms, combined with the help of Boolean operators, were: “dental implants”, “impression accuracy”, “digital impression” and “conventional impression”. Publication dates ranged from the earliest article available until 31 July 2021. A total of 26 articles fulfil

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Deniz, Sergen, Mustafa Zortuk, and Taha Yaşar Manav. "Impact of reuse of dental implant analogs on impression accuracy." Meandros Medical And Dental Journal 26, no. 1 (2025): 94–100. https://doi.org/10.69601/meandrosmdj.1590982.

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Introduction: This study aimed to examine the impact of repeated use of different implant impression analogs on the accuracy of the resulting impressions. Materials and Methods: Implant bodies from three brands (Group SA: Straumann, Switzerland; Group DA: Dio Implant, South Korea; Group MA: Mode Implant, Turkey) were used to create master models. Five reference casts were then fabricated for each brand (n=5) from these master models. Ten impressions were taken from each reference cast using the same analogs, which were sterilized between each impression. Both reference and working casts were d

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Chandraker, Neeraj Kumar. "Incremental impression technique for an implant-retained orbital prosthesis." Journal of Indian Prosthodontic Society 25, no. 2 (2025): 185–88. https://doi.org/10.4103/jips.jips_22_25.

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Accurate impressions are an essential prerequisite for fabricating implant-retained maxillofacial prostheses. This article describes an impression technique for recording orbital defects by making increments for an implant-retained orbital prosthesis using an open-tray impression. This technique enables an accurate transfer of implant position and recording of the area of interest. A wide range of impression-transfers, including dental implant impression posts, can also be used.

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Tohme, Hani, Ghida Lawand, Rita Eid, Khaled E. Ahmed, Ziad Salameh, and Joseph Makzoume. "Accuracy of Implant Level Intraoral Scanning and Photogrammetry Impression Techniques in a Complete Arch with Angled and Parallel Implants: An In Vitro Study." Applied Sciences 11, no. 21 (2021): 9859. http://dx.doi.org/10.3390/app11219859.

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(1) Background: Stereophotogrammetry has recently been investigated showing high accuracy in complete implant supported cases but has scarcely been investigated in cases of tilted implants. The aim of this in vitro study was to compare the accuracy of digital impression techniques (intraoral scanning and photogrammetry) at the level of intraoral scan bodies in terms of angular deviations and 3D discrepancies. (2) Methods: A stone master cast representing an edentulous maxilla using four implant analogs was fabricated. The two anterior implants were parallel to each other, and the two posterior

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Prerna, Kaushik, Lahori Manesh, Shahi Shikha, Sisodiya Siddharth, Agarwal Abhinav, and Srivastava Neha. "An in-vitro study to evaluate the accuracy of master casts obtained from different transfer impression techniques for a multi-unit implant restoration using two different impression materials evaluated by a 3-D optical scanner." Journal of Orofacial Rehabilitation 5, no. 1 (2025): 3–11. https://doi.org/10.5281/zenodo.15557573.

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<strong>Abstract</strong> <strong>Background: </strong>The precise transfer of implant positions from the oral cavity to the working cast is critical for the passive fit of implant-supported prostheses. This study aimed to evaluate and compare the accuracy of master casts obtained through various impression techniques using two elastomeric materials—Polyvinyl Siloxane (PVS) and Polyether (PE)—assessed using a 3D optical scanning system (DWOS). <strong>Materials and Methods: </strong>An edentulous maxillary reference model with four internal connection implants was used. Forty impre

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Sampaio-Fernandes, Manuel António, Ricardo Pinto, Paulo Rocha Almeida, Maria Margarida Sampaio-Fernandes, Duarte Marques, and Maria Helena Figueiral. "Trueness of Extraoral Digital Impressions for Full-Arch Implant Impressions—In Vitro Study." Materials 17, no. 12 (2024): 2932. http://dx.doi.org/10.3390/ma17122932.

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Direct scanning of silicone impressions is a valid technique. However, studies in implant-supported rehabilitations are lacking. This in vitro study aims to compare the trueness of impressions obtained with two types of silicone and their corresponding stone casts, using two laboratory scanners in a full-arch implant rehabilitation. A master cast with six dental implants was scanned with a 12-megapixel scanner to obtain a digital master cast. Ten implant impressions were made using two silicones (Zhermack and Coltene) with the open-tray technique. The impressions and stone casts were scanned b

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Tallarico, Marco, Aurea Lumbau, Roberto Scrascia, et al. "Feasibility of Using a Prosthetic-Based Impression Template to Improve the Trueness and Precision of a Complete Arch Digital Impression on Four and Six Implants: An In Vitro Study." Materials 13, no. 16 (2020): 3543. http://dx.doi.org/10.3390/ma13163543.

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Background: Intraoral scanners (IOSs) in implantology represent a viable approach for single teeth or partial arches. However, when used for complete edentulous arches or long-span edentulous areas, it has been demonstrated that there is a need for improvement of IOS-related techniques. Therefore, the aim of this in vitro study was to assess the trueness and precision of a complete arch digital impression on four and six implants taken with or without a customized, prosthetic-based impression template. Materials and Methods: Two experimental models were prepared, representative of a complete e

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Shetty, Pratiksha Shankar, Arti P. Gangurde, Manish R. Chauhan, Niraja V. Jaiswal, Pradnya R. Salian, and Vikram Singh. "Accuracy of the digital implant impression with splinted and non-splinted intraoral scan bodies: A systematic review." Journal of Indian Prosthodontic Society 25, no. 1 (2025): 3–12. https://doi.org/10.4103/jips.jips_261_24.

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Introduction: Accurate implant impressions are crucial for successful prosthetic rehabilitation. Digital impressions using intraoral scanners (IOS) have emerged as an alternative to conventional techniques. Various factors influence the accuracy of digital implant impressions, including scan body design, scanning protocol, and splinting techniques. Aim and Objective: To evaluate the difference between splinted and nonsplinted scan bodies in the accuracy of digital impressions for single or multiple implants by measuring distance and angular deviations between superimposed digital impressions.

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Selvaraj, Sunantha, Jayashree Mohan, Paul Simon, and Jayachandran Dorairaj. "Comparison of Accuracy of Direct Implant Impression Technique using Different Splinting Materials." International Journal of Prosthodontics and Restorative Dentistry 4, no. 3 (2014): 82–89. http://dx.doi.org/10.5005/jp-journals-10019-1112.

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ABSTRACT Introduction The accuracy of an impression remains critical factor in achieving passive fit of an implant framework. The accuracy of the master cast would depend on the type of impression material, the implant impression technique and accuracy of die material. The different impression techniques advocated in the literature for implant impressions include direct (open tray) and indirect (closed tray) techniques. Direct technique use square impression copings that are picked up in the impressions which were used in this study. Objective To evaluate the accuracy of direct impression made

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Uludag, Bulent. "An Alternate Pressure-Free Functional Impression Technique for Implant-Retained Overdentures." Journal of Oral Implantology 36, no. 3 (2010): 205–7. http://dx.doi.org/10.1563/aaid-joi-d-09-00036.

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Abstract Overdenture treatment provides an esthetic and functional result that allows proper access for hygiene and maintenance. For implant-retained overdentures to be successful, functional loads must be distributed optimally to the mucosa and the abutments. For this purpose, impressions must record the soft tissue supporting areas simultaneously with accurate registration of the implant components. Usually, finger pressure is used to make functional impressions. This article describes an alternate pressure-free functional impression technique for implant-retained overdentures.

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Cappare, Paolo, Gianpaolo Sannino, Margherita Minoli, Pietro Montemezzi, and Francesco Ferrini. "Conventional versus Digital Impressions for Full Arch Screw-Retained Maxillary Rehabilitations: A Randomized Clinical Trial." International Journal of Environmental Research and Public Health 16, no. 5 (2019): 829. http://dx.doi.org/10.3390/ijerph16050829.

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Background: The objective of this study was to compare conventional versus digital impressions for Full-Arch maxillary rehabilitations. Methods: Patients selected for this study were treated with full-arch screw-retained rehabilitations supported by six immediately loaded dental implants. Patients have been scheduled randomly into control (conventional impression group, CIG) and test (digital impression group, DIG) groups respectively for a fully conventional workflow and a fully digital workflow. In both groups, within 24 h, temporary prostheses were delivered. Four months after the implant p

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Lee, Byung-Kil, Sang-Hun Park, Cheong-Hee Lee, and Jin-Hyun Cho. "Implant overdenture impressions using a dynamic impression concept." Journal of Advanced Prosthodontics 6, no. 1 (2014): 66. http://dx.doi.org/10.4047/jap.2014.6.1.66.

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Alexander Hazboun, Gillian Brewer, Radi Masri, Elaine Romberg, Joanna Kempler, and Carl F. Driscoll. "Effect of implant angulation and impression technique on impressions of NobelActive implants." Journal of Prosthetic Dentistry 113, no. 5 (2015): 425–31. http://dx.doi.org/10.1016/j.prosdent.2014.10.009.

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Sneha, A., Vidhya Jeyapalan, S. Jayakrishnakumar, Hariharan Ramakrishnan, Vallabh Mahadevan, and Shivakumar Baskaran. "Comparative evaluation of the accuracy of implant position reproduction obtained using analog and digital impression methods an in vitro study." BOHR International Journal of Current Research in Dentistry 3, no. 1 (2024): 16–24. https://doi.org/10.54646/bijcrid.2024.23.

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Purpose of the study: To compare the accuracy of implant location reproduction utilizing digital and analog impression techniques. Materials and methods: Two implant analogs were positioned bilaterally in the 2nd premolar area at the crestal and 3 mm below the crestal level (subcrestal) to create a Maxillary Dentulous Master model. From the master model, ten analog implant impressions were created, and working castings with crestal (GROUP IA) and subcrestal (GROUP IB) implant analogs were produced. Using an intraoral scanner and STL files created, ten digital implant impressions were created f

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Assila, Layla, Hicham Soualhi, and Amal El Yamani. "IMPRESSION TECHNIQUES FOR IMPLANT DENTISTRY (PART 2) : OPEN TRAY TECHNIQUES." International Journal of Advanced Research 9, no. 10 (2021): 1227–31. http://dx.doi.org/10.21474/ijar01/13671.

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A highly accurate impression is one of success requirements in implant dentistry. A passively fitting prothesis is achieved when the 3-dimensional position of the implants is precisely transferred to the cast. Various impression techniques are described in the literature. Each one presents indications, qualities and limits. Many studies compared the main techniques which are closed and open-tray impressions along with their specificities. In this second part, the open-tray technique is described and discussed then compared with the closed-tray one.

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Rozov, Roman, Vladimir Trezubov, Olga Spitsyna, and Yulia Bistrova. "DIGITAL METHOD OF COMPARATIVE EVALUATION OF THE RIGIDITY BETWEEN THE CUSTOM MADE BY THE AUTHORS IMPLANT IMPRESSION TRAYS AND STOCK IMPLANT IMPRESSION TRAYS WITH REMOVABLE PARTS." Actual problems in dentistry 17, no. 2 (2021): 163–68. http://dx.doi.org/10.18481/2077-7566-20-17-2-163-168.

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Impression taking procedure from prosthetic area in case of constructing implant supported prostheses is one of the most important steps in the process of patient rehabilitation especially in producing long span structures. Quality of the impression could affect the precision and passive fit of the prosthesis to the implants therefore the overall quality of the work. Obtaining digital impressions of edentulous jaws with a different number of implants using intraoral devices is still an unresolved problem in full. The ergonomics of the process of obtaining an impression is not easy due to

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Karl, Matthias, and Victor Palarie. "Variables Affecting the Accuracy of Implant Master Casts: An In Vitro Pilot Study." Journal of Dental Surgery 2014 (May 14, 2014): 1–6. http://dx.doi.org/10.1155/2014/273079.

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Impression and master cast accuracy have been identified as being the major determinants of superstructure fit in implant-supported restorations. The goal of this in vitro investigation was to determine the effects of different transfer components, impression materials, disinfection, storage time, and stone type on master cast accuracy. Following impression making from a reference model with two internal-hex bone-level implants and master cast fabrication (eight experimental groups; n = 5), a bar-type measurement device equipped with a strain gauge was fixed on all master casts while strain de

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Nandini, Vidyashree V., Surya Rengaswamy, and Nikhath Sultana. "A Simple Modified Open Tray Implant Impression Technique in a Patient with Fixed Orthodontic Appliance Therapy." Journal of Clinical Prosthodontics and Implantology 6, no. 1 (2024): 27–29. http://dx.doi.org/10.55995/j-cpi.2024006.

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Background: Implant based restorations are an integral part of orthodontic treatment currently and this combination provides increased treatment options. Making impressions for implant based restorations in subjects undergoing orthodontic treatment is a challenging task. Aim: This article presents a simple technique to achieve precise impressions utilizing commonly available materials in dental operatory. Case Description: Patient undergoing orthodontic therapy requiring replacement of missing lateral incisor was planned for implant placement and crown fabrication simultaneously during fixed a

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Ribeiro, Paulo, Carmen María Díaz-Castro, Blanca Ríos-Carrasco, José Vicente Ríos-Santos, and Mariano Herrero-Climent. "Stereo-Photogrammetry for Impression of Full-Arch Fixed Dental Prosthesis—An Update of the Reviews." Prosthesis 6, no. 4 (2024): 939–51. http://dx.doi.org/10.3390/prosthesis6040068.

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Photogrammetry (PG) appeared as an alternative for multiple implant impressions. Stereo-photogrammetry is a more sophisticated alternative to PG, which estimates the 3D coordinates of the points of an object, making the process quicker and more precise. A search in PubMed MEDLINE, PMC, and Google Scholar was conducted to find systematic reviews published in the last 10 years. The PICdental® camera (IDITEC NORTH WEST, SL; Torrelodones, Spain) is a stereocamera that records implant positions in the mouth by means of photogrammetry with the objective of registering and obtaining a viable, reliabl

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Rajput, Mansi, J. Baranikrishnan, Manawar A. Mansoor, Radhika Thakkar, Shivani Karre, and Jeetu Verma. "Evaluation of Dimensional Change in Different Elastomeric Impression Materials Used in Implants: An Original Research." Journal of Pharmacy and Bioallied Sciences 16, Suppl 1 (2024): S605—S608. http://dx.doi.org/10.4103/jpbs.jpbs_886_23.

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ABSTRACT Aim: The study’s objective was to assess the dimensional accuracy of hybrid polyether and polyvinyl siloxane materials for implant impressions. Materials and Methods: Nine groups were created from 45 samples of various building materials and construction techniques from the study. Five samples were tested, and 45 impressions were recorded. Results: The hybrid non-splinted technique has improved implant site replication, accuracy, and low interimplant distance alterations. Conclusion: The finest possible reproduction of implant sites on the master cast was made feasible by the use of a

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Ribeiro, Paulo, Mariano Herrero-Climent, Carmen Díaz-Castro, et al. "Accuracy of Implant Casts Generated with Conventional and Digital Impressions—An In Vitro Study." International Journal of Environmental Research and Public Health 15, no. 8 (2018): 1599. http://dx.doi.org/10.3390/ijerph15081599.

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Purpose: The aim of this study was to compare the accuracy of digital dental impressions with the accuracy of impressions obtained via conventional techniques. Methods: Two different master models were created, one with parallel implants (model 1) and the other with non-parallel implants (model 2). These reference master models included 4 Klockner KL RP implants (Klockner Implant System SA, Barcelona, Spain), which were juxta-placed and equidistant in the intermentoneal region. In model 1 the implants were placed parallel to each other, whereas in model 2 the implants were placed such that the

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Studenikin, R. V., and A. A. Mamedov. "Comparison of digital scanning and conventional impression taking for implant-supported prostheses." Medical alphabet, no. 24 (September 26, 2021): 44–49. http://dx.doi.org/10.33667/2078-5631-2021-24-44-49.

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The effect of discrepancies between digital scans and conventional impressions on the clinical performance of a permanent restoration has not been fully understood.Thirty patients received conventional impressions and digital scans of a single implant restoration. Two crowns were made for the same implant using both methods. The time taken for each procedure was recorded. After analyzing the accuracy and effectiveness of both crowns, the best one was placed. A questionnaire was conducted to assess the preferences and comfort when using crowns made by one method or another.The total time for th

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Wee, Alvin G. "Comparison of impression materials for direct multi-implant impressions." Journal of Prosthetic Dentistry 83, no. 3 (2000): 323–31. http://dx.doi.org/10.1016/s0022-3913(00)70136-3.

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Shankar, YRavi, Sibeka Sahoo, MHari Krishna, PShameen Kumar, TSatyendra Kumar, and Sahil Narula. "Accuracy of implant impressions using various impression techniques and impression materials." Journal of Dental Implants 6, no. 1 (2016): 29. http://dx.doi.org/10.4103/0974-6781.190384.

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Vieira, Samanta N. V., Matheus F. Lourenço, Rodrigo C. Pereira, et al. "Conventional and Digital Impressions for Fabrication of Complete Implant-Supported Bars: A Comparative In Vitro Study." Materials 16, no. 11 (2023): 4176. http://dx.doi.org/10.3390/ma16114176.

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Obtaining accurate models and well-fitting prostheses during the fabrication of complete implant-supported prostheses has been a significant challenge. Conventional impression methods involve multiple clinical and laboratory steps that can lead to distortions, potentially resulting in inaccurate prostheses. In contrast, digital impressions may eliminate some of these steps, leading to better-fitting prostheses. Therefore, it is important to compare conventional and digital impressions for producing implant-supported prostheses. This study aimed to compare the quality of digital intraoral and c

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